Background
A district heating plant required an efficient and reliable solution for flue gas cleaning in order to comply with current and future emission standards. The process involves removing acidic components from the flue gas to prevent environmental pollution.
Challenge
During combustion, flue gas contains acidic compounds such as sulphur dioxide (SO₂), hydrogen chloride (HCl), and other pollutants. These components must be neutralised before release to the atmosphere.
The customer needed:
- A stable and precise dosing system
- Reliable handling of bulk material (lime)
- A solution that ensures consistent emission compliance
Solution
A complete lime dosing solution was installed, including a big bag emptying station designed for continuous and controlled feeding of lime into the flue gas cleaning system.
The system provide:
- Controlled and accurate dosing of lime
- Safe and efficient handling of big bags
- Stable operation under varying load conditions
The lime reacts with acidic components in the flue gas, neutralising them and converting them into solid compounds that can be safely removed.
Result
The installation ensures:
- Effective reduction of acidic emissions
- Compliance with environmental regulations
- Reliable and low-maintenance operation
The customer achieved a robust and future-proof solution for flue gas cleaning.
About the Technology
Flue gas cleaning is typically carried out in multiple stages. Lime dosing plays a key role in neutralising acidic gases and is one of the most widely used and cost-effective methods in modern energy plants.
